ECOLOGY
EXCRETORY PRODUCTS AND THEIR ELIMINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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proximal convoluted tubule, nephron loop (loop of Henle), distal convoluted tubule
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distal convoluted tubule, proximal convoluted tubule, nephron loop (loop of Henle)
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nephron loop (loop of Henle), proximal convoluted tubule, distal convoluted tubule
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proximal convoluted tubule, distal convoluted tubule, nephron loop (loop of Henle)
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Detailed explanation-1: -Glomerulus → Proximal Convoluted Tubule → Collecting duct → Henle loop.
Detailed explanation-2: -Correct answer: The correct path of filtrate through a nephron starts in the renal corpuscle, which is comprised of the glomerulus and Bowman’s capsule. Filtrate then passes through the proximal convoluted tubule, where the majority of reabsorption takes place.
Detailed explanation-3: -After leaving the renal corpuscle, the filtrate passes through the renal tubule in the following order, as shown in the diagram: proximal convoluted tubule (red: found in the renal cortex) loop of Henle (blue: mostly in the medulla) distal convoluted tubule (purple: found in the renal cortex)
Detailed explanation-4: -Hence the correct order is ‘Glomerular filtration → Reabsorption → Secretion’.
Detailed explanation-5: -The Bowman capsule joins into the proximal tubule, which is followed by the thin descending loop of Henle, the thin ascending loop of Henle, the thick ascending Henle tubule, the macula densa, and the distal tubule and connecting tubule to the collecting duct (Figure 1; Alpert and Hebert, 2007, pp.